GyanGramQuestion
Which of the following is/are the possible consequence/s of heavy sand mining in riverbeds?
1. Decreased salinity in the river
2. Pollution of groundwater
3. Lowering of the water-table
Select the correct answer using the code given below :
PRELIMS 2018 · ENVIRONMENT
Which of the following is/are the possible consequence/s of heavy sand mining in riverbed…
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• Correct Answer: B
• Sand mining deepens riverbeds, causing groundwater pollution through sediment resuspension and machinery leaks, and lowers the water table by creating pits.
• Wrong options are incorrect: sand mining increases salinity through seawater intrusion, not decreases it.
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